Produktdetails

Number of full bridges 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 47 Sleep current (µA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current Regulation, Current sense Amplifier, Smart Gate Drive Topology External FET Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 5.5 Vs ABS (max) (V) 47 Sleep current (µA) 14 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current Regulation, Current sense Amplifier, Smart Gate Drive Topology External FET Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VQFN (RHB) 32 25 mm² 5 x 5
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45-V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Functional Safety-Capable
  • Single H-Bridge Gate Driver
    • Drives Four External N-Channel MOSFETs
    • Supports 100% PWM Duty Cycle
  • 5.5 to 45-V Operating Supply-Voltage Range
  • Three Control-Interface Options
    • PH/EN, Independent H-Bridge, and PWM
  • Serial Interface for Configuration (DRV8703-Q1)
  • Smart Gate Drive Architecture
    • Adjustable Slew-Rate Control
  • Independent Control of Each H-Bridge
  • Supports 1.8-V, 3.3-V, and 5-V logic inputs
  • Current-Shunt Amplifier
  • Integrated PWM Current Regulation
  • Low-Power Sleep Mode
  • Protection Features
    • Supply Undervoltage Lockout (UVLO)
    • Charge-Pump Undervoltage (CPUV) Lockout
    • Overcurrent Protection (OCP)
    • Gate-Driver Fault (GDF)
    • Thermal Shutdown (TSD)
    • Watchdog Timer (DRV8703-Q1)
    • Fault-Condition Output (nFAULT)

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

The DRV870x-Q1 devices are small single H-bridge gate drivers that use four external N-channel MOSFETs targeted to drive a bidirectional brushed-DC motor.

A PH/EN, independent H-Bridge, or PWM interface allows simple interfacing to controller circuits. An internal sense amplifier provides adjustable current control. Integrated Charge-Pump allows for 100% duty cycle support and can be used to drive external reverse battery switch.

Independent Half Bridge mode allows sharing of half bridges to control multiple DC motors sequentially in a cost-efficient way. The gate driver includes circuitry to regulate the winding current using fixed off-time PWM current chopping.

The DRV870x-Q1 devices include Smart Gate Drive technology to remove the need for any external gate components (resistors and Zener diodes) while protecting the external FETs. The Smart Gate Drive architecture optimizes dead time to avoid any shoot-through conditions, provides flexibility in reducing electromagnetic interference (EMI) with programmable slew-rate control and protects against any gate-short conditions. Additionally, active and passive pulldowns are included to prevent any dv/dt gate turn on.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet DRV870x-Q1 Automotive H-Bridge Gate Driver datasheet (Rev. E) PDF | HTML 13 Nov 2018
Application note Using DRV to Drive Solenoids (Rev. A) PDF | HTML 24 Apr 2022
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 Okt 2021
Application note Understanding Smart Gate Drive (Rev. D) 01 Mär 2021
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 19 Jan 2021
Functional safety information DRV8702-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 10 Dez 2020
Technical article How to efficiently drive 12-V and 24-V engine loads in automotive systems PDF | HTML 09 Jul 2020
Application note Detecting Short to Battery and Ground Conditions with TI Motor Gate Drivers PDF | HTML 29 Mai 2020
White paper Smart Gate Drive 02 Jul 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) 19 Feb 2019
Application note Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) 20 Aug 2018
Technical article Why are you still driving automotive motors with relays? PDF | HTML 13 Jul 2017
Application note Relay Replacement for Brushed DC Motor Drive in Automotive Applications 14 Nov 2016
EVM User's guide DRV8702-Q1 EVM User’s Guide 26 Okt 2016

Design und Entwicklung

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